Tech-dat/Sensor-dat/Camera-dat/wireless-camera-dat/wireless-camera-dat.md
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@@ -47,6 +47,10 @@ Comparing DJI O4 and analog video cameras involves several aspects. Here's a bre
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- Monitor temperature
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- Consider industrial-grade VTX or digital systems for reliability
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+#### Issue: This device is not well-suited for continuous surveillance applications.
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+
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+Limitation: Requires a cool-down period after 4-5 hours of operation, suggesting potential overheating or reliability concerns with extended use.
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+
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## Analog FPV Transmission System
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Tech-dat/media-dat/video-dat.md
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# video-dat
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-![](2025-04-11-14-18-19.png)
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\ No newline at end of file
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+![](2025-04-11-14-18-19.png)
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+
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+
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+## resolution compare
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+
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+| Resolution Name | short | Megapixels (MP) | Pixel Dimensions | Aspect Ratio | Common Use Cases |
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+| --------------- | ----- | --------------- | ------------------------ | ------------ | ---------------------------- |
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+| 1080p (Full HD) | FHD | ~2.1 MP | 1920 × 1080 | 16:9 | HD video, streaming |
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+| 3MP | | 3.0 MP | 2048 × 1536 (or similar) | 4:3 | Budget security cameras |
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+| 4MP | | 4.0 MP | 2560 × 1440 | 16:9 | Mid-range security systems |
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+| 5MP | | 5.0 MP | 2592 × 1944 | 4:3 | Higher-res CCTV, imaging |
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+| 4K (Ultra HD) | UHD | ~8.3 MP | 3840 × 2160 | 16:9 | High-end video, surveillance |
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+
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+
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+
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+
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+## ref
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+
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+- [[camera-dat]]
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app-dat/openpnp-dat/PixiePlacer-dat/PixiePlacer-Y-dat/PixiePlacer-Y-dat.md
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@@ -4,10 +4,8 @@
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- [[motion-system-dat]]
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+[assembly video ](https://www.youtube.com/watch?v=StzaezD6ANE)
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-explanation
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-
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-https://github.com/PixiePlacer/PixiePlacer/wiki/Y%E2%80%90Axis
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## Tension Slider Assembly
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@@ -24,7 +22,7 @@ https://github.com/PixiePlacer/PixiePlacer/wiki/Y%E2%80%90Axis
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Standard Part
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-GT2_Idler_20T_5B_6mm
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+GT2_Idler_20T_5B_6mm == [[timing-pulley-dat]]
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Nuts and Bolts
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@@ -39,6 +37,20 @@ Nuts and Bolts
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- Star_Knob_Cover == can not find this file
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- Tension_Slider == https://cad.onshape.com/documents/e640485c664452ef18221338/v/ecf6a991a8286a17a6f28085/e/1d506c43d62b8f4e412e0560?renderMode=0&uiState=67d019d4668a6a59b71b9bf7
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+## steps by steps
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+
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+[explanation in github ](https://github.com/PixiePlacer/PixiePlacer/wiki/Y%E2%80%90Axis)
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+
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+### Tension Slider
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+
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+- [[timing-pulley-dat]] - [[glue-dat]]
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+
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+- The Tension_Slider tensions the belt on the X-Axis and Y-Axis. In total three are needed in the machine. The Hex_Screw_M5x35mm is pressed into the Star_Knob_Base and the Star_Knob_Cover glued on inorder to encapsulate the screw.
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+- A M5_Nut is dropped into the Tension_Slider.
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+- The Socket_Cap_Screw_M5x45mm is pushed through the hole of the Tension_Slider and the GT2_Idler_20T_5B_6mm and secured with a M5_Nut.
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+- Pass the belt through the center of the aluminum extrusion before mounting both mounting plates to the aluminum extrusion.
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+
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+
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## Y-axis
app-dat/openpnp-dat/PixiePlacer-dat/PixiePlacer-dat.md
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@@ -11,7 +11,7 @@ https://www.youtube.com/@pixieplacer
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- raw BOM file [[PixiePlacer-BOM-dat]]
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-- [[PixiePlacer-Frame-dat]]
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+- [[PixiePlacer-Frame-dat]] - [[ALU_extrusion-dat]]
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- [[PixiePlacer-Y-dat]]
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mechanics-dat/belt-dat/timing-pulley-dat/2025-04-11-16-38-50.png
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Binary files /dev/null and b/mechanics-dat/belt-dat/timing-pulley-dat/2025-04-11-16-38-50.png differ
mechanics-dat/belt-dat/timing-pulley-dat/timing-pulley-dat.md
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# timing-pulley-dat
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-GT2_Timing_Pulley_20T_8B_6mm
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+GT2_Timing_Pulley_20T_8B_6mm
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+
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+![](2025-04-11-16-38-50.png)
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+
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+
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+## ref
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+
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+- [[timing-pulley]]
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mechanics-dat/glue-dat/glue-dat.md
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+
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+# glue-dat
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+
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+
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+# 🔍 Comparison of Adhesives
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+
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+| Feature / Property | 502 Glue (Cyanoacrylate) | Epoxy Resin (AB Glue) | Hot Glue (Thermoplastic) | UV Glue (Light-Cured Adhesive) |
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+|---------------------------|-------------------------------|-----------------------------------|----------------------------------|-------------------------------------|
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+| **Main Component** | Cyanoacrylate | Epoxy resin + Hardener | Thermoplastic (EVA) | Acrylated resin + photoinitiators |
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+| **Curing Trigger** | Moisture (in air/surface) | Chemical (resin + hardener mix) | Heat (glue gun) | UV light |
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+| **Cure Time** | Seconds | Minutes to hours | Seconds (cools fast) | Seconds (with UV light) |
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+| **Bond Strength** | High | Very High | Medium | High |
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+| **Material Compatibility**| Metal, plastic, rubber, etc. | Most surfaces | Most porous and some plastics | Glass, plastic, metal |
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+| **Heat Resistance** | Low to Moderate | High | Low | Moderate to High |
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+| **Moisture Resistance** | Moderate | High | Low | High |
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+| **Application Control** | Moderate (can drip) | Requires mixing, precise | Easy, but can be stringy | Precise (controlled by light) |
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+| **Reusability** | No (one-time bond) | No (once mixed, must be used) | Yes (reheat and reuse) | No |
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+| **Common Uses** | Quick household repairs, models| Heavy-duty bonding, structural | Crafts, packaging, quick fixes | Phone screens, jewelry, precision |
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+| **Cleanup** | Acetone | Alcohol/solvents before cure | Peel off | Alcohol or acetone |
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+
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+
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+
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+
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+## How 502 Glue Works (Cyanoacrylate Adhesive)
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+
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+502 glue, also known as **super glue**, is primarily made from **cyanoacrylate**. It works based on a **rapid polymerization reaction** triggered by moisture.
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+
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+---
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+
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+### 🧪 Basic Principle
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+
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+**1. Composition – Cyanoacrylate:**
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+502 glue contains cyanoacrylate monomers that remain stable in dry environments. However, when exposed to even tiny amounts of **moisture (like humidity in the air)**, a chemical reaction starts.
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+
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+**2. Polymerization Triggered by Moisture:**
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+When applied to surfaces, the trace moisture on them acts as a **catalyst**, initiating a **rapid chain reaction** that converts the liquid monomers into solid polymers (plastic-like substance).
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+
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+👉 This hardening happens within **seconds**.
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+
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+**3. Exothermic Reaction:**
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+The polymerization process **releases heat**. This is why 502 glue can feel hot when accidentally bonded to skin, sometimes causing minor burns.
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+
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+---
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+
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+### 🔧 Adhesive Characteristics
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+
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+- Bonds quickly and strongly to various materials like:
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+ - Metal
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+ - Plastic
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+ - Rubber
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+ - Ceramics
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+ - Leather
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+- Dries in seconds
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+- High bonding strength
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+- **Not ideal** for long-term high heat or moisture exposure (may become brittle)
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+
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+---
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+
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+### 🧼 How to Remove It
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+
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+If you accidentally glue your skin or surfaces, try:
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+
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+- **Nail polish remover (contains acetone)**
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+- **Soaking in warm soapy water**
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+- **Gentle peeling or waiting for it to wear off naturally**
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+
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+---
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+
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+### 📌 Summary
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+
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+502 glue works by **polymerizing instantly** when in contact with moisture, forming a hard plastic-like bond. It’s fast, strong, and versatile—but must be handled carefully due to its speed and bonding strength.
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+